Mistral opens a public preview of Mistral Large 4, a 1.05T-parameter open-weight model trained in Europe
Mistral puts Mistral Large 4 ("le Chonk") into public preview: a 1.05T-parameter open-weight MoE served from EU datacenters, with weights promised by month's end.
DeepSeek ships V4.1-Flash: asymmetric MoE, 1/4 the KV cache
552B MoE, native vision, 8B/16B active params, MIT weights. The KV-cache compression DeepSeek wants agents to live with.
OpenAI launches Agents API: managed Codex harness
OpenAI's Agents API brings the open-source Codex harness to a managed API, letting developers run cloud agents with pay-per-use pricing and sandbox partner options.
Sonnet 5 launches at $2/$10, nears Opus 4.8
Anthropic's Claude Sonnet 5 launches 2026-06-30 with intro pricing $2/$10 per MTok (→$3/$15 on Sep 1), a new effort-level API dial, and a near-Opus cost-performance curve.
CodeBurn: free, local-first cost tracker for 31 AI coding tools
CodeBurn (getagentseal/codeburn) reads the session files your AI coding tools already write, breaks down every token and dollar across 31 integrations, MIT, no proxy, no API key.